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cd: hacks..

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This commit is contained in:
notaz 2013-10-07 01:39:53 +03:00
parent 274fcc35aa
commit 7b3ddc11dc
4 changed files with 35 additions and 6 deletions
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13
pico/cd/cdd.c
View file

@ -163,7 +163,7 @@ void cdd_reset(void)
cdd.lba = 0;
/* reset status */
cdd.status = cdd.loaded ? CD_STOP : NO_DISC;
cdd.status = NO_DISC;
/* reset CD-DA fader (full volume) */
cdd.volume = 0x400;
@ -426,6 +426,10 @@ int cdd_load(const char *filename, int type)
/* CD loaded */
cdd.loaded = 1;
/* disc not scanned yet */
cdd.status = NO_DISC;
return 0;
}
@ -473,6 +477,9 @@ int cdd_unload(void)
/* CD unloaded */
cdd.loaded = 0;
if (cdd.status != CD_OPEN)
cdd.status = NO_DISC;
}
/* reset TOC */
@ -927,6 +934,9 @@ void cdd_process(void)
case 0x02: /* Read TOC */
{
if (cdd.status == NO_DISC)
cdd.status = cdd.loaded ? CD_STOP : NO_DISC;
/* Infos automatically retrieved by CDD processor from Q-Channel */
/* commands 0x00-0x02 (current block) and 0x03-0x05 (Lead-In) */
switch (Pico_mcd->regs[0x44>>1].byte.l)
@ -1287,6 +1297,7 @@ void cdd_process(void)
if (PicoMCDcloseTray)
PicoMCDcloseTray();
return;
}

7
pico/cd/mcd.c
View file

@ -42,10 +42,8 @@ PICO_INTERNAL void PicoPowerMCD(void)
memset(Pico_mcd->s68k_regs, 0, sizeof(Pico_mcd->s68k_regs));
memset(&Pico_mcd->pcm, 0, sizeof(Pico_mcd->pcm));
memset(&Pico_mcd->m, 0, sizeof(Pico_mcd->m));
Pico_mcd->s68k_regs[0x38+9] = 0x0f; // default checksum
cdc_init();
cdd_reset();
gfx_init();
// cold reset state (tested)
@ -57,7 +55,7 @@ PICO_INTERNAL void PicoPowerMCD(void)
void pcd_soft_reset(void)
{
// Reset_CD(); // breaks Fahrenheit CD swap
elprintf(EL_CD, "cd: soft reset");
Pico_mcd->m.s68k_pend_ints = 0;
cdc_reset();
@ -66,6 +64,9 @@ void pcd_soft_reset(void)
//PicoMemResetCDdecode(1); // don't have to call this in 2M mode
#endif
memset(&Pico_mcd->s68k_regs[0x38], 0, 9);
Pico_mcd->s68k_regs[0x38+9] = 0x0f; // default checksum
pcd_event_schedule_s68k(PCD_EVENT_CDC, 12500000/75);
// TODO: test if register state/timers change

17
pico/cd/memory.c
View file

@ -434,8 +434,23 @@ void s68k_reg_write8(u32 a, u32 d)
return;
}
case 0x4b:
Pico_mcd->s68k_regs[a] = (u8) d;
Pico_mcd->s68k_regs[a] = 0; // (u8) d; ?
cdd_process();
{
static const char *nm[] =
{ "stat", "stop", "read_toc", "play",
"seek", "???", "pause", "resume",
"ff", "fr", "tjump", "???",
"close","open", "???", "???" };
u8 *c = &Pico_mcd->s68k_regs[0x42];
u8 *s = &Pico_mcd->s68k_regs[0x38];
elprintf(EL_CD,
"CDD command: %02x %02x %02x %02x %02x %02x %02x %02x %12s",
c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7], nm[c[0] & 0x0f]);
elprintf(EL_CD,
"CDD status: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
s[0], s[1], s[2], s[3], s[4], s[5], s[6], s[7], s[8], s[9]);
}
return;
case 0x58:
return;

2
platform/common/menu_pico.c
View file

@ -1019,6 +1019,8 @@ static int main_menu_handler(int id, int keys)
break;
case MA_MAIN_CHANGE_CD:
if (PicoAHW & PAHW_MCD) {
// if cd is loaded, cdd_unload() triggers eject and
// returns 1, else we'll select and load new CD here
if (!cdd_unload())
menu_loop_tray();
return 1;